High Performance Auto Engine Service | Hesco Hesco is an auto engine service company specializing in performance engines. Browse through our Jeep Store to find performance parts for your Jeep! Protective Solutions Around The World | HESCO Stand strong in the knowledge that you, your workforce and your property are being protected by the best. We develop and provide protective solutions for a wide range of sectors and can provide advice and onsite training anywhere in the world.[PDF] Manual #90560 For Installing: #10111 Direct Fit Jeep YJ Figure numbers refer to pictures and the Diagram numbers refer to illustrations. Figure numbers correspond to the Section number the are covered in. Always pay special and careful attention to any Notes and any text marked Caution. 3.0 CONTENTS OF THE PAINLESS WIRE HARNESS KIT Refer to the list below to take inventory of all the parts in the kit.